• Comments on "PBH tests for nonlinear systems"Sarafrazi, Mohammad Amin; Bartosiewicz, Zbigniew; Kotta, ÜlleAutomatica2020 / art. 108617 https://doi.org/10.1016/j.automatica.2019.108617 https://www.scopus.com/sourceid/24909 https://www.scopus.com/record/display.uri?eid=2-s2.0-85076097514&origin=inward&txGid=7b03b7a7a1f74952fa3141a94f7e2d17 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=AUTOMATICA&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000504513100049
• A robust adaptive sensor array with slepian sequences [Electronic resource]Trump, TõnuThe Seventh IEEE Sensor Array and Multichannel Signal Processing Workshop : June 17-20, 2012, Hoboken, New York, USA2012 / p. 121-124 : ill [CD-ROM] https://ieeexplore.ieee.org/document/6250444
• The inverse Sturm-Liouville problem for quasi-homogeneous potential and the variational methodAinola, LeoTallinna Tehnikaülikooli Toimetised1994 / lk. 11-18